Canterra Tower (Also known as Devon Tower) is a skyscraper in Calgary, Alberta, Canada. Located at 400 3rd Avenue SW, it stands at 177 metres (581 ft) or 45 storeys tall. The building was completed in 1988 and was designed by WZMH Architects in the postmodern style. It was built with glass curtain walls on all sides.
The building is owned and managed by global real estate investor, developer and owner Oxford Properties, and major tenants in the building include Devon Canada, an oil and gas company and Norton Rose Canada LLP, one of Canada's largest law firms. Devon Tower is a Class ‘AAA’ office tower located in the bustling Eau Claire District. It has an efficient floor plate and offers tremendous vista views of downtown, the mountains, the city and prairies, and it is one of the city’s top office buildings.